Watch The Plus One (2023) HD Full Movie Free on solarmovie.do. Watch The Plus One (2023) online free. Lizzie only request of her "Male of Honor" Marshall is that he doesn't bring his hated ex Marie to h...Lizzie only request of her "Male of Honor" Marshall is that he doesn't bring his hated ex Marie to her destination wedding. But lovesick Marshall brings her as his plus one, and Marie does everything in her power to wreck Lizzie's big day.